Remove <marquee> leftovers

Source/core/css/CSSProperties.in

 // This file specifies all the CSS properties we support and the necessary
 // information for our code generation. The various supported arguments
 // are described below with example usage
 
 
 // - alias_for=other-property
 // Properties specifying alias_for do not get their own enum and instead map
 // directly onto the CSSPropertyID they alias. Currently this means that the
 // UseCounter will not pick up on these (crbug.com/304855)
 
@@ skipping 368 matching lines @@
 widows animatable, inherited, type_name=short, custom_all
 width animatable, initial=initialSize, converter=convertLengthSizing
 will-change custom_all
 word-break inherited
 word-spacing animatable, inherited, initial=initialLetterWordSpacing, converter=convertSpacing
 // UAs must treat 'word-wrap' as an alternate name for the 'overflow-wrap' property. So using the same handlers.
 word-wrap inherited, name_for_methods=OverflowWrap
 writing-mode inherited, svg, type_name=SVGWritingMode
 z-index animatable, type_name=int, custom_all
 
-// Internal properties
-
--internal-marquee-direction name_for_methods=MarqueeDirection
--internal-marquee-increment name_for_methods=MarqueeIncrement, converter=convertLength
--internal-marquee-repetition type_name=int, name_for_methods=MarqueeLoopCount, custom_value
--internal-marquee-speed name_for_methods=MarqueeSpeed, converter=convertNumberOrPercentage
--internal-marquee-style name_for_methods=MarqueeBehavior
-
 // Non-standard direction aware properties
 
 -webkit-border-end-color direction_aware
 -webkit-border-end-style direction_aware
 -webkit-border-end-width direction_aware
 -webkit-border-start-color direction_aware
 -webkit-border-start-style direction_aware
 -webkit-border-start-width direction_aware
 -webkit-border-before-color direction_aware
 -webkit-border-before-style direction_aware
@@ skipping 118 matching lines @@
 -webkit-flex-flow alias_for=flex-flow
 -webkit-flex-grow alias_for=flex-grow
 -webkit-flex-shrink alias_for=flex-shrink
 -webkit-flex-wrap alias_for=flex-wrap
 -webkit-justify-content alias_for=justify-content
 -webkit-opacity alias_for=opacity
 -webkit-order alias_for=order
 -webkit-shape-image-threshold alias_for=shape-image-threshold
 -webkit-shape-margin alias_for=shape-margin
 -webkit-shape-outside alias_for=shape-outside